?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[wrt350n-kernel.git] / drivers / scsi / aacraid / aachba.c
blobc05092fd3a9dff7bfb3197639d0b5908b6a3d5b0
1 /*
2 * Adaptec AAC series RAID controller driver
3 * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com>
4 *
5 * based on the old aacraid driver that is..
6 * Adaptec aacraid device driver for Linux.
7 *
8 * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2, or (at your option)
13 * any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; see the file COPYING. If not, write to
22 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
23 *
24 */
25
26 #include <linux/kernel.h>
27 #include <linux/init.h>
28 #include <linux/types.h>
29 #include <linux/pci.h>
30 #include <linux/spinlock.h>
31 #include <linux/slab.h>
32 #include <linux/completion.h>
33 #include <linux/blkdev.h>
34 #include <asm/semaphore.h>
35 #include <asm/uaccess.h>
36 #include <linux/highmem.h> /* For flush_kernel_dcache_page */
37
38 #include <scsi/scsi.h>
39 #include <scsi/scsi_cmnd.h>
40 #include <scsi/scsi_device.h>
41 #include <scsi/scsi_host.h>
42
43 #include "aacraid.h"
44
45 /* values for inqd_pdt: Peripheral device type in plain English */
46 #define INQD_PDT_DA 0x00 /* Direct-access (DISK) device */
47 #define INQD_PDT_PROC 0x03 /* Processor device */
48 #define INQD_PDT_CHNGR 0x08 /* Changer (jukebox, scsi2) */
49 #define INQD_PDT_COMM 0x09 /* Communication device (scsi2) */
50 #define INQD_PDT_NOLUN2 0x1f /* Unknown Device (scsi2) */
51 #define INQD_PDT_NOLUN 0x7f /* Logical Unit Not Present */
52
53 #define INQD_PDT_DMASK 0x1F /* Peripheral Device Type Mask */
54 #define INQD_PDT_QMASK 0xE0 /* Peripheral Device Qualifer Mask */
55
56 /*
57 * Sense codes
58 */
59
60 #define SENCODE_NO_SENSE 0x00
61 #define SENCODE_END_OF_DATA 0x00
62 #define SENCODE_BECOMING_READY 0x04
63 #define SENCODE_INIT_CMD_REQUIRED 0x04
64 #define SENCODE_PARAM_LIST_LENGTH_ERROR 0x1A
65 #define SENCODE_INVALID_COMMAND 0x20
66 #define SENCODE_LBA_OUT_OF_RANGE 0x21
67 #define SENCODE_INVALID_CDB_FIELD 0x24
68 #define SENCODE_LUN_NOT_SUPPORTED 0x25
69 #define SENCODE_INVALID_PARAM_FIELD 0x26
70 #define SENCODE_PARAM_NOT_SUPPORTED 0x26
71 #define SENCODE_PARAM_VALUE_INVALID 0x26
72 #define SENCODE_RESET_OCCURRED 0x29
73 #define SENCODE_LUN_NOT_SELF_CONFIGURED_YET 0x3E
74 #define SENCODE_INQUIRY_DATA_CHANGED 0x3F
75 #define SENCODE_SAVING_PARAMS_NOT_SUPPORTED 0x39
76 #define SENCODE_DIAGNOSTIC_FAILURE 0x40
77 #define SENCODE_INTERNAL_TARGET_FAILURE 0x44
78 #define SENCODE_INVALID_MESSAGE_ERROR 0x49
79 #define SENCODE_LUN_FAILED_SELF_CONFIG 0x4c
80 #define SENCODE_OVERLAPPED_COMMAND 0x4E
81
82 /*
83 * Additional sense codes
84 */
85
86 #define ASENCODE_NO_SENSE 0x00
87 #define ASENCODE_END_OF_DATA 0x05
88 #define ASENCODE_BECOMING_READY 0x01
89 #define ASENCODE_INIT_CMD_REQUIRED 0x02
90 #define ASENCODE_PARAM_LIST_LENGTH_ERROR 0x00
91 #define ASENCODE_INVALID_COMMAND 0x00
92 #define ASENCODE_LBA_OUT_OF_RANGE 0x00
93 #define ASENCODE_INVALID_CDB_FIELD 0x00
94 #define ASENCODE_LUN_NOT_SUPPORTED 0x00
95 #define ASENCODE_INVALID_PARAM_FIELD 0x00
96 #define ASENCODE_PARAM_NOT_SUPPORTED 0x01
97 #define ASENCODE_PARAM_VALUE_INVALID 0x02
98 #define ASENCODE_RESET_OCCURRED 0x00
99 #define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET 0x00
100 #define ASENCODE_INQUIRY_DATA_CHANGED 0x03
101 #define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED 0x00
102 #define ASENCODE_DIAGNOSTIC_FAILURE 0x80
103 #define ASENCODE_INTERNAL_TARGET_FAILURE 0x00
104 #define ASENCODE_INVALID_MESSAGE_ERROR 0x00
105 #define ASENCODE_LUN_FAILED_SELF_CONFIG 0x00
106 #define ASENCODE_OVERLAPPED_COMMAND 0x00
107
108 #define BYTE0(x) (unsigned char)(x)
109 #define BYTE1(x) (unsigned char)((x) >> 8)
110 #define BYTE2(x) (unsigned char)((x) >> 16)
111 #define BYTE3(x) (unsigned char)((x) >> 24)
112
113 /*------------------------------------------------------------------------------
114 * S T R U C T S / T Y P E D E F S
115 *----------------------------------------------------------------------------*/
116 /* SCSI inquiry data */
117 struct inquiry_data {
118 u8 inqd_pdt; /* Peripheral qualifier | Peripheral Device Type */
119 u8 inqd_dtq; /* RMB | Device Type Qualifier */
120 u8 inqd_ver; /* ISO version | ECMA version | ANSI-approved version */
121 u8 inqd_rdf; /* AENC | TrmIOP | Response data format */
122 u8 inqd_len; /* Additional length (n-4) */
123 u8 inqd_pad1[2];/* Reserved - must be zero */
124 u8 inqd_pad2; /* RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */
125 u8 inqd_vid[8]; /* Vendor ID */
126 u8 inqd_pid[16];/* Product ID */
127 u8 inqd_prl[4]; /* Product Revision Level */
128 };
129
130 /*
131 * M O D U L E G L O B A L S
132 */
133
134 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
135 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
136 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg);
137 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd);
138 #ifdef AAC_DETAILED_STATUS_INFO
139 static char *aac_get_status_string(u32 status);
140 #endif
141
142 /*
143 * Non dasd selection is handled entirely in aachba now
144 */
145
146 static int nondasd = -1;
147 static int aac_cache;
148 static int dacmode = -1;
149 int aac_msi;
150 int aac_commit = -1;
151 int startup_timeout = 180;
152 int aif_timeout = 120;
153
154 module_param(nondasd, int, S_IRUGO|S_IWUSR);
155 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices."
156 " 0=off, 1=on");
157 module_param_named(cache, aac_cache, int, S_IRUGO|S_IWUSR);
158 MODULE_PARM_DESC(cache, "Disable Queue Flush commands:\n"
159 "\tbit 0 - Disable FUA in WRITE SCSI commands\n"
160 "\tbit 1 - Disable SYNCHRONIZE_CACHE SCSI command\n"
161 "\tbit 2 - Disable only if Battery not protecting Cache");
162 module_param(dacmode, int, S_IRUGO|S_IWUSR);
163 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC."
164 " 0=off, 1=on");
165 module_param_named(commit, aac_commit, int, S_IRUGO|S_IWUSR);
166 MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the"
167 " adapter for foreign arrays.\n"
168 "This is typically needed in systems that do not have a BIOS."
169 " 0=off, 1=on");
170 module_param_named(msi, aac_msi, int, S_IRUGO|S_IWUSR);
171 MODULE_PARM_DESC(msi, "IRQ handling."
172 " 0=PIC(default), 1=MSI, 2=MSI-X(unsupported, uses MSI)");
173 module_param(startup_timeout, int, S_IRUGO|S_IWUSR);
174 MODULE_PARM_DESC(startup_timeout, "The duration of time in seconds to wait for"
175 " adapter to have it's kernel up and\n"
176 "running. This is typically adjusted for large systems that do not"
177 " have a BIOS.");
178 module_param(aif_timeout, int, S_IRUGO|S_IWUSR);
179 MODULE_PARM_DESC(aif_timeout, "The duration of time in seconds to wait for"
180 " applications to pick up AIFs before\n"
181 "deregistering them. This is typically adjusted for heavily burdened"
182 " systems.");
183
184 int numacb = -1;
185 module_param(numacb, int, S_IRUGO|S_IWUSR);
186 MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control"
187 " blocks (FIB) allocated. Valid values are 512 and down. Default is"
188 " to use suggestion from Firmware.");
189
190 int acbsize = -1;
191 module_param(acbsize, int, S_IRUGO|S_IWUSR);
192 MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB)"
193 " size. Valid values are 512, 2048, 4096 and 8192. Default is to use"
194 " suggestion from Firmware.");
195
196 int update_interval = 30 * 60;
197 module_param(update_interval, int, S_IRUGO|S_IWUSR);
198 MODULE_PARM_DESC(update_interval, "Interval in seconds between time sync"
199 " updates issued to adapter.");
200
201 int check_interval = 24 * 60 * 60;
202 module_param(check_interval, int, S_IRUGO|S_IWUSR);
203 MODULE_PARM_DESC(check_interval, "Interval in seconds between adapter health"
204 " checks.");
205
206 int aac_check_reset = 1;
207 module_param_named(check_reset, aac_check_reset, int, S_IRUGO|S_IWUSR);
208 MODULE_PARM_DESC(aac_check_reset, "If adapter fails health check, reset the"
209 " adapter. a value of -1 forces the reset to adapters programmed to"
210 " ignore it.");
211
212 int expose_physicals = -1;
213 module_param(expose_physicals, int, S_IRUGO|S_IWUSR);
214 MODULE_PARM_DESC(expose_physicals, "Expose physical components of the arrays."
215 " -1=protect 0=off, 1=on");
216
217 int aac_reset_devices;
218 module_param_named(reset_devices, aac_reset_devices, int, S_IRUGO|S_IWUSR);
219 MODULE_PARM_DESC(reset_devices, "Force an adapter reset at initialization.");
220
221 static inline int aac_valid_context(struct scsi_cmnd *scsicmd,
222 struct fib *fibptr) {
223 struct scsi_device *device;
224
225 if (unlikely(!scsicmd || !scsicmd->scsi_done)) {
226 dprintk((KERN_WARNING "aac_valid_context: scsi command corrupt\n"));
227 aac_fib_complete(fibptr);
228 aac_fib_free(fibptr);
229 return 0;
230 }
231 scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
232 device = scsicmd->device;
233 if (unlikely(!device || !scsi_device_online(device))) {
234 dprintk((KERN_WARNING "aac_valid_context: scsi device corrupt\n"));
235 aac_fib_complete(fibptr);
236 aac_fib_free(fibptr);
237 return 0;
238 }
239 return 1;
240 }
241
242 /**
243 * aac_get_config_status - check the adapter configuration
244 * @common: adapter to query
245 *
246 * Query config status, and commit the configuration if needed.
247 */
248 int aac_get_config_status(struct aac_dev *dev, int commit_flag)
249 {
250 int status = 0;
251 struct fib * fibptr;
252
253 if (!(fibptr = aac_fib_alloc(dev)))
254 return -ENOMEM;
255
256 aac_fib_init(fibptr);
257 {
258 struct aac_get_config_status *dinfo;
259 dinfo = (struct aac_get_config_status *) fib_data(fibptr);
260
261 dinfo->command = cpu_to_le32(VM_ContainerConfig);
262 dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS);
263 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data));
264 }
265
266 status = aac_fib_send(ContainerCommand,
267 fibptr,
268 sizeof (struct aac_get_config_status),
269 FsaNormal,
270 1, 1,
271 NULL, NULL);
272 if (status < 0) {
273 printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
274 } else {
275 struct aac_get_config_status_resp *reply
276 = (struct aac_get_config_status_resp *) fib_data(fibptr);
277 dprintk((KERN_WARNING
278 "aac_get_config_status: response=%d status=%d action=%d\n",
279 le32_to_cpu(reply->response),
280 le32_to_cpu(reply->status),
281 le32_to_cpu(reply->data.action)));
282 if ((le32_to_cpu(reply->response) != ST_OK) ||
283 (le32_to_cpu(reply->status) != CT_OK) ||
284 (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) {
285 printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n");
286 status = -EINVAL;
287 }
288 }
289 aac_fib_complete(fibptr);
290 /* Send a CT_COMMIT_CONFIG to enable discovery of devices */
291 if (status >= 0) {
292 if ((aac_commit == 1) || commit_flag) {
293 struct aac_commit_config * dinfo;
294 aac_fib_init(fibptr);
295 dinfo = (struct aac_commit_config *) fib_data(fibptr);
296
297 dinfo->command = cpu_to_le32(VM_ContainerConfig);
298 dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
299
300 status = aac_fib_send(ContainerCommand,
301 fibptr,
302 sizeof (struct aac_commit_config),
303 FsaNormal,
304 1, 1,
305 NULL, NULL);
306 aac_fib_complete(fibptr);
307 } else if (aac_commit == 0) {
308 printk(KERN_WARNING
309 "aac_get_config_status: Foreign device configurations are being ignored\n");
310 }
311 }
312 aac_fib_free(fibptr);
313 return status;
314 }
315
316 /**
317 * aac_get_containers - list containers
318 * @common: adapter to probe
319 *
320 * Make a list of all containers on this controller
321 */
322 int aac_get_containers(struct aac_dev *dev)
323 {
324 struct fsa_dev_info *fsa_dev_ptr;
325 u32 index;
326 int status = 0;
327 struct fib * fibptr;
328 struct aac_get_container_count *dinfo;
329 struct aac_get_container_count_resp *dresp;
330 int maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
331
332 if (!(fibptr = aac_fib_alloc(dev)))
333 return -ENOMEM;
334
335 aac_fib_init(fibptr);
336 dinfo = (struct aac_get_container_count *) fib_data(fibptr);
337 dinfo->command = cpu_to_le32(VM_ContainerConfig);
338 dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT);
339
340 status = aac_fib_send(ContainerCommand,
341 fibptr,
342 sizeof (struct aac_get_container_count),
343 FsaNormal,
344 1, 1,
345 NULL, NULL);
346 if (status >= 0) {
347 dresp = (struct aac_get_container_count_resp *)fib_data(fibptr);
348 maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries);
349 aac_fib_complete(fibptr);
350 }
351 aac_fib_free(fibptr);
352
353 if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS)
354 maximum_num_containers = MAXIMUM_NUM_CONTAINERS;
355 fsa_dev_ptr = kzalloc(sizeof(*fsa_dev_ptr) * maximum_num_containers,
356 GFP_KERNEL);
357 if (!fsa_dev_ptr)
358 return -ENOMEM;
359
360 dev->fsa_dev = fsa_dev_ptr;
361 dev->maximum_num_containers = maximum_num_containers;
362
363 for (index = 0; index < dev->maximum_num_containers; ) {
364 fsa_dev_ptr[index].devname[0] = '\0';
365
366 status = aac_probe_container(dev, index);
367
368 if (status < 0) {
369 printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n");
370 break;
371 }
372
373 /*
374 * If there are no more containers, then stop asking.
375 */
376 if (++index >= status)
377 break;
378 }
379 return status;
380 }
381
382 static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigned int offset, unsigned int len)
383 {
384 void *buf;
385 int transfer_len;
386 struct scatterlist *sg = scsi_sglist(scsicmd);
387
388 buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
389 transfer_len = min(sg->length, len + offset);
390
391 transfer_len -= offset;
392 if (buf && transfer_len > 0)
393 memcpy(buf + offset, data, transfer_len);
394
395 flush_kernel_dcache_page(kmap_atomic_to_page(buf - sg->offset));
396 kunmap_atomic(buf - sg->offset, KM_IRQ0);
397
398 }
399
400 static void get_container_name_callback(void *context, struct fib * fibptr)
401 {
402 struct aac_get_name_resp * get_name_reply;
403 struct scsi_cmnd * scsicmd;
404
405 scsicmd = (struct scsi_cmnd *) context;
406
407 if (!aac_valid_context(scsicmd, fibptr))
408 return;
409
410 dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies));
411 BUG_ON(fibptr == NULL);
412
413 get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr);
414 /* Failure is irrelevant, using default value instead */
415 if ((le32_to_cpu(get_name_reply->status) == CT_OK)
416 && (get_name_reply->data[0] != '\0')) {
417 char *sp = get_name_reply->data;
418 sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0';
419 while (*sp == ' ')
420 ++sp;
421 if (*sp) {
422 char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
423 int count = sizeof(d);
424 char *dp = d;
425 do {
426 *dp++ = (*sp) ? *sp++ : ' ';
427 } while (--count > 0);
428 aac_internal_transfer(scsicmd, d,
429 offsetof(struct inquiry_data, inqd_pid), sizeof(d));
430 }
431 }
432
433 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
434
435 aac_fib_complete(fibptr);
436 aac_fib_free(fibptr);
437 scsicmd->scsi_done(scsicmd);
438 }
439
440 /**
441 * aac_get_container_name - get container name, none blocking.
442 */
443 static int aac_get_container_name(struct scsi_cmnd * scsicmd)
444 {
445 int status;
446 struct aac_get_name *dinfo;
447 struct fib * cmd_fibcontext;
448 struct aac_dev * dev;
449
450 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
451
452 if (!(cmd_fibcontext = aac_fib_alloc(dev)))
453 return -ENOMEM;
454
455 aac_fib_init(cmd_fibcontext);
456 dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext);
457
458 dinfo->command = cpu_to_le32(VM_ContainerConfig);
459 dinfo->type = cpu_to_le32(CT_READ_NAME);
460 dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
461 dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
462
463 status = aac_fib_send(ContainerCommand,
464 cmd_fibcontext,
465 sizeof (struct aac_get_name),
466 FsaNormal,
467 0, 1,
468 (fib_callback)get_container_name_callback,
469 (void *) scsicmd);
470
471 /*
472 * Check that the command queued to the controller
473 */
474 if (status == -EINPROGRESS) {
475 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
476 return 0;
477 }
478
479 printk(KERN_WARNING "aac_get_container_name: aac_fib_send failed with status: %d.\n", status);
480 aac_fib_complete(cmd_fibcontext);
481 aac_fib_free(cmd_fibcontext);
482 return -1;
483 }
484
485 static int aac_probe_container_callback2(struct scsi_cmnd * scsicmd)
486 {
487 struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
488
489 if ((fsa_dev_ptr[scmd_id(scsicmd)].valid & 1))
490 return aac_scsi_cmd(scsicmd);
491
492 scsicmd->result = DID_NO_CONNECT << 16;
493 scsicmd->scsi_done(scsicmd);
494 return 0;
495 }
496
497 static void _aac_probe_container2(void * context, struct fib * fibptr)
498 {
499 struct fsa_dev_info *fsa_dev_ptr;
500 int (*callback)(struct scsi_cmnd *);
501 struct scsi_cmnd * scsicmd = (struct scsi_cmnd *)context;
502
503
504 if (!aac_valid_context(scsicmd, fibptr))
505 return;
506
507 scsicmd->SCp.Status = 0;
508 fsa_dev_ptr = fibptr->dev->fsa_dev;
509 if (fsa_dev_ptr) {
510 struct aac_mount * dresp = (struct aac_mount *) fib_data(fibptr);
511 fsa_dev_ptr += scmd_id(scsicmd);
512
513 if ((le32_to_cpu(dresp->status) == ST_OK) &&
514 (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) &&
515 (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) {
516 fsa_dev_ptr->valid = 1;
517 fsa_dev_ptr->type = le32_to_cpu(dresp->mnt[0].vol);
518 fsa_dev_ptr->size
519 = ((u64)le32_to_cpu(dresp->mnt[0].capacity)) +
520 (((u64)le32_to_cpu(dresp->mnt[0].capacityhigh)) << 32);
521 fsa_dev_ptr->ro = ((le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY) != 0);
522 }
523 if ((fsa_dev_ptr->valid & 1) == 0)
524 fsa_dev_ptr->valid = 0;
525 scsicmd->SCp.Status = le32_to_cpu(dresp->count);
526 }
527 aac_fib_complete(fibptr);
528 aac_fib_free(fibptr);
529 callback = (int (*)(struct scsi_cmnd *))(scsicmd->SCp.ptr);
530 scsicmd->SCp.ptr = NULL;
531 (*callback)(scsicmd);
532 return;
533 }
534
535 static void _aac_probe_container1(void * context, struct fib * fibptr)
536 {
537 struct scsi_cmnd * scsicmd;
538 struct aac_mount * dresp;
539 struct aac_query_mount *dinfo;
540 int status;
541
542 dresp = (struct aac_mount *) fib_data(fibptr);
543 dresp->mnt[0].capacityhigh = 0;
544 if ((le32_to_cpu(dresp->status) != ST_OK) ||
545 (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
546 _aac_probe_container2(context, fibptr);
547 return;
548 }
549 scsicmd = (struct scsi_cmnd *) context;
550
551 if (!aac_valid_context(scsicmd, fibptr))
552 return;
553
554 aac_fib_init(fibptr);
555
556 dinfo = (struct aac_query_mount *)fib_data(fibptr);
557
558 dinfo->command = cpu_to_le32(VM_NameServe64);
559 dinfo->count = cpu_to_le32(scmd_id(scsicmd));
560 dinfo->type = cpu_to_le32(FT_FILESYS);
561
562 status = aac_fib_send(ContainerCommand,
563 fibptr,
564 sizeof(struct aac_query_mount),
565 FsaNormal,
566 0, 1,
567 _aac_probe_container2,
568 (void *) scsicmd);
569 /*
570 * Check that the command queued to the controller
571 */
572 if (status == -EINPROGRESS)
573 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
574 else if (status < 0) {
575 /* Inherit results from VM_NameServe, if any */
576 dresp->status = cpu_to_le32(ST_OK);
577 _aac_probe_container2(context, fibptr);
578 }
579 }
580
581 static int _aac_probe_container(struct scsi_cmnd * scsicmd, int (*callback)(struct scsi_cmnd *))
582 {
583 struct fib * fibptr;
584 int status = -ENOMEM;
585
586 if ((fibptr = aac_fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata))) {
587 struct aac_query_mount *dinfo;
588
589 aac_fib_init(fibptr);
590
591 dinfo = (struct aac_query_mount *)fib_data(fibptr);
592
593 dinfo->command = cpu_to_le32(VM_NameServe);
594 dinfo->count = cpu_to_le32(scmd_id(scsicmd));
595 dinfo->type = cpu_to_le32(FT_FILESYS);
596 scsicmd->SCp.ptr = (char *)callback;
597
598 status = aac_fib_send(ContainerCommand,
599 fibptr,
600 sizeof(struct aac_query_mount),
601 FsaNormal,
602 0, 1,
603 _aac_probe_container1,
604 (void *) scsicmd);
605 /*
606 * Check that the command queued to the controller
607 */
608 if (status == -EINPROGRESS) {
609 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
610 return 0;
611 }
612 if (status < 0) {
613 scsicmd->SCp.ptr = NULL;
614 aac_fib_complete(fibptr);
615 aac_fib_free(fibptr);
616 }
617 }
618 if (status < 0) {
619 struct fsa_dev_info *fsa_dev_ptr = ((struct aac_dev *)(scsicmd->device->host->hostdata))->fsa_dev;
620 if (fsa_dev_ptr) {
621 fsa_dev_ptr += scmd_id(scsicmd);
622 if ((fsa_dev_ptr->valid & 1) == 0) {
623 fsa_dev_ptr->valid = 0;
624 return (*callback)(scsicmd);
625 }
626 }
627 }
628 return status;
629 }
630
631 /**
632 * aac_probe_container - query a logical volume
633 * @dev: device to query
634 * @cid: container identifier
635 *
636 * Queries the controller about the given volume. The volume information
637 * is updated in the struct fsa_dev_info structure rather than returned.
638 */
639 static int aac_probe_container_callback1(struct scsi_cmnd * scsicmd)
640 {
641 scsicmd->device = NULL;
642 return 0;
643 }
644
645 int aac_probe_container(struct aac_dev *dev, int cid)
646 {
647 struct scsi_cmnd *scsicmd = kmalloc(sizeof(*scsicmd), GFP_KERNEL);
648 struct scsi_device *scsidev = kmalloc(sizeof(*scsidev), GFP_KERNEL);
649 int status;
650
651 if (!scsicmd || !scsidev) {
652 kfree(scsicmd);
653 kfree(scsidev);
654 return -ENOMEM;
655 }
656 scsicmd->list.next = NULL;
657 scsicmd->scsi_done = (void (*)(struct scsi_cmnd*))aac_probe_container_callback1;
658
659 scsicmd->device = scsidev;
660 scsidev->sdev_state = 0;
661 scsidev->id = cid;
662 scsidev->host = dev->scsi_host_ptr;
663
664 if (_aac_probe_container(scsicmd, aac_probe_container_callback1) == 0)
665 while (scsicmd->device == scsidev)
666 schedule();
667 kfree(scsidev);
668 status = scsicmd->SCp.Status;
669 kfree(scsicmd);
670 return status;
671 }
672
673 /* Local Structure to set SCSI inquiry data strings */
674 struct scsi_inq {
675 char vid[8]; /* Vendor ID */
676 char pid[16]; /* Product ID */
677 char prl[4]; /* Product Revision Level */
678 };
679
680 /**
681 * InqStrCopy - string merge
682 * @a: string to copy from
683 * @b: string to copy to
684 *
685 * Copy a String from one location to another
686 * without copying \0
687 */
688
689 static void inqstrcpy(char *a, char *b)
690 {
691
692 while (*a != (char)0)
693 *b++ = *a++;
694 }
695
696 static char *container_types[] = {
697 "None",
698 "Volume",
699 "Mirror",
700 "Stripe",
701 "RAID5",
702 "SSRW",
703 "SSRO",
704 "Morph",
705 "Legacy",
706 "RAID4",
707 "RAID10",
708 "RAID00",
709 "V-MIRRORS",
710 "PSEUDO R4",
711 "RAID50",
712 "RAID5D",
713 "RAID5D0",
714 "RAID1E",
715 "RAID6",
716 "RAID60",
717 "Unknown"
718 };
719
720 char * get_container_type(unsigned tindex)
721 {
722 if (tindex >= ARRAY_SIZE(container_types))
723 tindex = ARRAY_SIZE(container_types) - 1;
724 return container_types[tindex];
725 }
726
727 /* Function: setinqstr
728 *
729 * Arguments: [1] pointer to void [1] int
730 *
731 * Purpose: Sets SCSI inquiry data strings for vendor, product
732 * and revision level. Allows strings to be set in platform dependant
733 * files instead of in OS dependant driver source.
734 */
735
736 static void setinqstr(struct aac_dev *dev, void *data, int tindex)
737 {
738 struct scsi_inq *str;
739
740 str = (struct scsi_inq *)(data); /* cast data to scsi inq block */
741 memset(str, ' ', sizeof(*str));
742
743 if (dev->supplement_adapter_info.AdapterTypeText[0]) {
744 char * cp = dev->supplement_adapter_info.AdapterTypeText;
745 int c;
746 if ((cp[0] == 'A') && (cp[1] == 'O') && (cp[2] == 'C'))
747 inqstrcpy("SMC", str->vid);
748 else {
749 c = sizeof(str->vid);
750 while (*cp && *cp != ' ' && --c)
751 ++cp;
752 c = *cp;
753 *cp = '\0';
754 inqstrcpy (dev->supplement_adapter_info.AdapterTypeText,
755 str->vid);
756 *cp = c;
757 while (*cp && *cp != ' ')
758 ++cp;
759 }
760 while (*cp == ' ')
761 ++cp;
762 /* last six chars reserved for vol type */
763 c = 0;
764 if (strlen(cp) > sizeof(str->pid)) {
765 c = cp[sizeof(str->pid)];
766 cp[sizeof(str->pid)] = '\0';
767 }
768 inqstrcpy (cp, str->pid);
769 if (c)
770 cp[sizeof(str->pid)] = c;
771 } else {
772 struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype);
773
774 inqstrcpy (mp->vname, str->vid);
775 /* last six chars reserved for vol type */
776 inqstrcpy (mp->model, str->pid);
777 }
778
779 if (tindex < ARRAY_SIZE(container_types)){
780 char *findit = str->pid;
781
782 for ( ; *findit != ' '; findit++); /* walk till we find a space */
783 /* RAID is superfluous in the context of a RAID device */
784 if (memcmp(findit-4, "RAID", 4) == 0)
785 *(findit -= 4) = ' ';
786 if (((findit - str->pid) + strlen(container_types[tindex]))
787 < (sizeof(str->pid) + sizeof(str->prl)))
788 inqstrcpy (container_types[tindex], findit + 1);
789 }
790 inqstrcpy ("V1.0", str->prl);
791 }
792
793 static void get_container_serial_callback(void *context, struct fib * fibptr)
794 {
795 struct aac_get_serial_resp * get_serial_reply;
796 struct scsi_cmnd * scsicmd;
797
798 BUG_ON(fibptr == NULL);
799
800 scsicmd = (struct scsi_cmnd *) context;
801 if (!aac_valid_context(scsicmd, fibptr))
802 return;
803
804 get_serial_reply = (struct aac_get_serial_resp *) fib_data(fibptr);
805 /* Failure is irrelevant, using default value instead */
806 if (le32_to_cpu(get_serial_reply->status) == CT_OK) {
807 char sp[13];
808 /* EVPD bit set */
809 sp[0] = INQD_PDT_DA;
810 sp[1] = scsicmd->cmnd[2];
811 sp[2] = 0;
812 sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
813 le32_to_cpu(get_serial_reply->uid));
814 aac_internal_transfer(scsicmd, sp, 0, sizeof(sp));
815 }
816
817 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
818
819 aac_fib_complete(fibptr);
820 aac_fib_free(fibptr);
821 scsicmd->scsi_done(scsicmd);
822 }
823
824 /**
825 * aac_get_container_serial - get container serial, none blocking.
826 */
827 static int aac_get_container_serial(struct scsi_cmnd * scsicmd)
828 {
829 int status;
830 struct aac_get_serial *dinfo;
831 struct fib * cmd_fibcontext;
832 struct aac_dev * dev;
833
834 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
835
836 if (!(cmd_fibcontext = aac_fib_alloc(dev)))
837 return -ENOMEM;
838
839 aac_fib_init(cmd_fibcontext);
840 dinfo = (struct aac_get_serial *) fib_data(cmd_fibcontext);
841
842 dinfo->command = cpu_to_le32(VM_ContainerConfig);
843 dinfo->type = cpu_to_le32(CT_CID_TO_32BITS_UID);
844 dinfo->cid = cpu_to_le32(scmd_id(scsicmd));
845
846 status = aac_fib_send(ContainerCommand,
847 cmd_fibcontext,
848 sizeof (struct aac_get_serial),
849 FsaNormal,
850 0, 1,
851 (fib_callback) get_container_serial_callback,
852 (void *) scsicmd);
853
854 /*
855 * Check that the command queued to the controller
856 */
857 if (status == -EINPROGRESS) {
858 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
859 return 0;
860 }
861
862 printk(KERN_WARNING "aac_get_container_serial: aac_fib_send failed with status: %d.\n", status);
863 aac_fib_complete(cmd_fibcontext);
864 aac_fib_free(cmd_fibcontext);
865 return -1;
866 }
867
868 /* Function: setinqserial
869 *
870 * Arguments: [1] pointer to void [1] int
871 *
872 * Purpose: Sets SCSI Unit Serial number.
873 * This is a fake. We should read a proper
874 * serial number from the container. <SuSE>But
875 * without docs it's quite hard to do it :-)
876 * So this will have to do in the meantime.</SuSE>
877 */
878
879 static int setinqserial(struct aac_dev *dev, void *data, int cid)
880 {
881 /*
882 * This breaks array migration.
883 */
884 return snprintf((char *)(data), sizeof(struct scsi_inq) - 4, "%08X%02X",
885 le32_to_cpu(dev->adapter_info.serial[0]), cid);
886 }
887
888 static inline void set_sense(struct sense_data *sense_data, u8 sense_key,
889 u8 sense_code, u8 a_sense_code, u8 bit_pointer, u16 field_pointer)
890 {
891 u8 *sense_buf = (u8 *)sense_data;
892 /* Sense data valid, err code 70h */
893 sense_buf[0] = 0x70; /* No info field */
894 sense_buf[1] = 0; /* Segment number, always zero */
895
896 sense_buf[2] = sense_key; /* Sense key */
897
898 sense_buf[12] = sense_code; /* Additional sense code */
899 sense_buf[13] = a_sense_code; /* Additional sense code qualifier */
900
901 if (sense_key == ILLEGAL_REQUEST) {
902 sense_buf[7] = 10; /* Additional sense length */
903
904 sense_buf[15] = bit_pointer;
905 /* Illegal parameter is in the parameter block */
906 if (sense_code == SENCODE_INVALID_CDB_FIELD)
907 sense_buf[15] |= 0xc0;/* Std sense key specific field */
908 /* Illegal parameter is in the CDB block */
909 sense_buf[16] = field_pointer >> 8; /* MSB */
910 sense_buf[17] = field_pointer; /* LSB */
911 } else
912 sense_buf[7] = 6; /* Additional sense length */
913 }
914
915 static int aac_bounds_32(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
916 {
917 if (lba & 0xffffffff00000000LL) {
918 int cid = scmd_id(cmd);
919 dprintk((KERN_DEBUG "aacraid: Illegal lba\n"));
920 cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
921 SAM_STAT_CHECK_CONDITION;
922 set_sense(&dev->fsa_dev[cid].sense_data,
923 HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
924 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
925 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
926 min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
927 SCSI_SENSE_BUFFERSIZE));
928 cmd->scsi_done(cmd);
929 return 1;
930 }
931 return 0;
932 }
933
934 static int aac_bounds_64(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
935 {
936 return 0;
937 }
938
939 static void io_callback(void *context, struct fib * fibptr);
940
941 static int aac_read_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
942 {
943 u16 fibsize;
944 struct aac_raw_io *readcmd;
945 aac_fib_init(fib);
946 readcmd = (struct aac_raw_io *) fib_data(fib);
947 readcmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
948 readcmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
949 readcmd->count = cpu_to_le32(count<<9);
950 readcmd->cid = cpu_to_le16(scmd_id(cmd));
951 readcmd->flags = cpu_to_le16(IO_TYPE_READ);
952 readcmd->bpTotal = 0;
953 readcmd->bpComplete = 0;
954
955 aac_build_sgraw(cmd, &readcmd->sg);
956 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(readcmd->sg.count) - 1) * sizeof (struct sgentryraw));
957 BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
958 /*
959 * Now send the Fib to the adapter
960 */
961 return aac_fib_send(ContainerRawIo,
962 fib,
963 fibsize,
964 FsaNormal,
965 0, 1,
966 (fib_callback) io_callback,
967 (void *) cmd);
968 }
969
970 static int aac_read_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
971 {
972 u16 fibsize;
973 struct aac_read64 *readcmd;
974 aac_fib_init(fib);
975 readcmd = (struct aac_read64 *) fib_data(fib);
976 readcmd->command = cpu_to_le32(VM_CtHostRead64);
977 readcmd->cid = cpu_to_le16(scmd_id(cmd));
978 readcmd->sector_count = cpu_to_le16(count);
979 readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
980 readcmd->pad = 0;
981 readcmd->flags = 0;
982
983 aac_build_sg64(cmd, &readcmd->sg);
984 fibsize = sizeof(struct aac_read64) +
985 ((le32_to_cpu(readcmd->sg.count) - 1) *
986 sizeof (struct sgentry64));
987 BUG_ON (fibsize > (fib->dev->max_fib_size -
988 sizeof(struct aac_fibhdr)));
989 /*
990 * Now send the Fib to the adapter
991 */
992 return aac_fib_send(ContainerCommand64,
993 fib,
994 fibsize,
995 FsaNormal,
996 0, 1,
997 (fib_callback) io_callback,
998 (void *) cmd);
999 }
1000
1001 static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count)
1002 {
1003 u16 fibsize;
1004 struct aac_read *readcmd;
1005 aac_fib_init(fib);
1006 readcmd = (struct aac_read *) fib_data(fib);
1007 readcmd->command = cpu_to_le32(VM_CtBlockRead);
1008 readcmd->cid = cpu_to_le32(scmd_id(cmd));
1009 readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1010 readcmd->count = cpu_to_le32(count * 512);
1011
1012 aac_build_sg(cmd, &readcmd->sg);
1013 fibsize = sizeof(struct aac_read) +
1014 ((le32_to_cpu(readcmd->sg.count) - 1) *
1015 sizeof (struct sgentry));
1016 BUG_ON (fibsize > (fib->dev->max_fib_size -
1017 sizeof(struct aac_fibhdr)));
1018 /*
1019 * Now send the Fib to the adapter
1020 */
1021 return aac_fib_send(ContainerCommand,
1022 fib,
1023 fibsize,
1024 FsaNormal,
1025 0, 1,
1026 (fib_callback) io_callback,
1027 (void *) cmd);
1028 }
1029
1030 static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1031 {
1032 u16 fibsize;
1033 struct aac_raw_io *writecmd;
1034 aac_fib_init(fib);
1035 writecmd = (struct aac_raw_io *) fib_data(fib);
1036 writecmd->block[0] = cpu_to_le32((u32)(lba&0xffffffff));
1037 writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
1038 writecmd->count = cpu_to_le32(count<<9);
1039 writecmd->cid = cpu_to_le16(scmd_id(cmd));
1040 writecmd->flags = (fua && ((aac_cache & 5) != 1) &&
1041 (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
1042 cpu_to_le16(IO_TYPE_WRITE|IO_SUREWRITE) :
1043 cpu_to_le16(IO_TYPE_WRITE);
1044 writecmd->bpTotal = 0;
1045 writecmd->bpComplete = 0;
1046
1047 aac_build_sgraw(cmd, &writecmd->sg);
1048 fibsize = sizeof(struct aac_raw_io) + ((le32_to_cpu(writecmd->sg.count) - 1) * sizeof (struct sgentryraw));
1049 BUG_ON(fibsize > (fib->dev->max_fib_size - sizeof(struct aac_fibhdr)));
1050 /*
1051 * Now send the Fib to the adapter
1052 */
1053 return aac_fib_send(ContainerRawIo,
1054 fib,
1055 fibsize,
1056 FsaNormal,
1057 0, 1,
1058 (fib_callback) io_callback,
1059 (void *) cmd);
1060 }
1061
1062 static int aac_write_block64(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1063 {
1064 u16 fibsize;
1065 struct aac_write64 *writecmd;
1066 aac_fib_init(fib);
1067 writecmd = (struct aac_write64 *) fib_data(fib);
1068 writecmd->command = cpu_to_le32(VM_CtHostWrite64);
1069 writecmd->cid = cpu_to_le16(scmd_id(cmd));
1070 writecmd->sector_count = cpu_to_le16(count);
1071 writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1072 writecmd->pad = 0;
1073 writecmd->flags = 0;
1074
1075 aac_build_sg64(cmd, &writecmd->sg);
1076 fibsize = sizeof(struct aac_write64) +
1077 ((le32_to_cpu(writecmd->sg.count) - 1) *
1078 sizeof (struct sgentry64));
1079 BUG_ON (fibsize > (fib->dev->max_fib_size -
1080 sizeof(struct aac_fibhdr)));
1081 /*
1082 * Now send the Fib to the adapter
1083 */
1084 return aac_fib_send(ContainerCommand64,
1085 fib,
1086 fibsize,
1087 FsaNormal,
1088 0, 1,
1089 (fib_callback) io_callback,
1090 (void *) cmd);
1091 }
1092
1093 static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32 count, int fua)
1094 {
1095 u16 fibsize;
1096 struct aac_write *writecmd;
1097 aac_fib_init(fib);
1098 writecmd = (struct aac_write *) fib_data(fib);
1099 writecmd->command = cpu_to_le32(VM_CtBlockWrite);
1100 writecmd->cid = cpu_to_le32(scmd_id(cmd));
1101 writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
1102 writecmd->count = cpu_to_le32(count * 512);
1103 writecmd->sg.count = cpu_to_le32(1);
1104 /* ->stable is not used - it did mean which type of write */
1105
1106 aac_build_sg(cmd, &writecmd->sg);
1107 fibsize = sizeof(struct aac_write) +
1108 ((le32_to_cpu(writecmd->sg.count) - 1) *
1109 sizeof (struct sgentry));
1110 BUG_ON (fibsize > (fib->dev->max_fib_size -
1111 sizeof(struct aac_fibhdr)));
1112 /*
1113 * Now send the Fib to the adapter
1114 */
1115 return aac_fib_send(ContainerCommand,
1116 fib,
1117 fibsize,
1118 FsaNormal,
1119 0, 1,
1120 (fib_callback) io_callback,
1121 (void *) cmd);
1122 }
1123
1124 static struct aac_srb * aac_scsi_common(struct fib * fib, struct scsi_cmnd * cmd)
1125 {
1126 struct aac_srb * srbcmd;
1127 u32 flag;
1128 u32 timeout;
1129
1130 aac_fib_init(fib);
1131 switch(cmd->sc_data_direction){
1132 case DMA_TO_DEVICE:
1133 flag = SRB_DataOut;
1134 break;
1135 case DMA_BIDIRECTIONAL:
1136 flag = SRB_DataIn | SRB_DataOut;
1137 break;
1138 case DMA_FROM_DEVICE:
1139 flag = SRB_DataIn;
1140 break;
1141 case DMA_NONE:
1142 default: /* shuts up some versions of gcc */
1143 flag = SRB_NoDataXfer;
1144 break;
1145 }
1146
1147 srbcmd = (struct aac_srb*) fib_data(fib);
1148 srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);
1149 srbcmd->channel = cpu_to_le32(aac_logical_to_phys(scmd_channel(cmd)));
1150 srbcmd->id = cpu_to_le32(scmd_id(cmd));
1151 srbcmd->lun = cpu_to_le32(cmd->device->lun);
1152 srbcmd->flags = cpu_to_le32(flag);
1153 timeout = cmd->timeout_per_command/HZ;
1154 if (timeout == 0)
1155 timeout = 1;
1156 srbcmd->timeout = cpu_to_le32(timeout); // timeout in seconds
1157 srbcmd->retry_limit = 0; /* Obsolete parameter */
1158 srbcmd->cdb_size = cpu_to_le32(cmd->cmd_len);
1159 return srbcmd;
1160 }
1161
1162 static void aac_srb_callback(void *context, struct fib * fibptr);
1163
1164 static int aac_scsi_64(struct fib * fib, struct scsi_cmnd * cmd)
1165 {
1166 u16 fibsize;
1167 struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1168
1169 aac_build_sg64(cmd, (struct sgmap64*) &srbcmd->sg);
1170 srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1171
1172 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1173 memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1174 /*
1175 * Build Scatter/Gather list
1176 */
1177 fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) +
1178 ((le32_to_cpu(srbcmd->sg.count) & 0xff) *
1179 sizeof (struct sgentry64));
1180 BUG_ON (fibsize > (fib->dev->max_fib_size -
1181 sizeof(struct aac_fibhdr)));
1182
1183 /*
1184 * Now send the Fib to the adapter
1185 */
1186 return aac_fib_send(ScsiPortCommand64, fib,
1187 fibsize, FsaNormal, 0, 1,
1188 (fib_callback) aac_srb_callback,
1189 (void *) cmd);
1190 }
1191
1192 static int aac_scsi_32(struct fib * fib, struct scsi_cmnd * cmd)
1193 {
1194 u16 fibsize;
1195 struct aac_srb * srbcmd = aac_scsi_common(fib, cmd);
1196
1197 aac_build_sg(cmd, (struct sgmap*)&srbcmd->sg);
1198 srbcmd->count = cpu_to_le32(scsi_bufflen(cmd));
1199
1200 memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb));
1201 memcpy(srbcmd->cdb, cmd->cmnd, cmd->cmd_len);
1202 /*
1203 * Build Scatter/Gather list
1204 */
1205 fibsize = sizeof (struct aac_srb) +
1206 (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) *
1207 sizeof (struct sgentry));
1208 BUG_ON (fibsize > (fib->dev->max_fib_size -
1209 sizeof(struct aac_fibhdr)));
1210
1211 /*
1212 * Now send the Fib to the adapter
1213 */
1214 return aac_fib_send(ScsiPortCommand, fib, fibsize, FsaNormal, 0, 1,
1215 (fib_callback) aac_srb_callback, (void *) cmd);
1216 }
1217
1218 static int aac_scsi_32_64(struct fib * fib, struct scsi_cmnd * cmd)
1219 {
1220 if ((sizeof(dma_addr_t) > 4) &&
1221 (num_physpages > (0xFFFFFFFFULL >> PAGE_SHIFT)) &&
1222 (fib->dev->adapter_info.options & AAC_OPT_SGMAP_HOST64))
1223 return FAILED;
1224 return aac_scsi_32(fib, cmd);
1225 }
1226
1227 int aac_get_adapter_info(struct aac_dev* dev)
1228 {
1229 struct fib* fibptr;
1230 int rcode;
1231 u32 tmp;
1232 struct aac_adapter_info *info;
1233 struct aac_bus_info *command;
1234 struct aac_bus_info_response *bus_info;
1235
1236 if (!(fibptr = aac_fib_alloc(dev)))
1237 return -ENOMEM;
1238
1239 aac_fib_init(fibptr);
1240 info = (struct aac_adapter_info *) fib_data(fibptr);
1241 memset(info,0,sizeof(*info));
1242
1243 rcode = aac_fib_send(RequestAdapterInfo,
1244 fibptr,
1245 sizeof(*info),
1246 FsaNormal,
1247 -1, 1, /* First `interrupt' command uses special wait */
1248 NULL,
1249 NULL);
1250
1251 if (rcode < 0) {
1252 aac_fib_complete(fibptr);
1253 aac_fib_free(fibptr);
1254 return rcode;
1255 }
1256 memcpy(&dev->adapter_info, info, sizeof(*info));
1257
1258 if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
1259 struct aac_supplement_adapter_info * sinfo;
1260
1261 aac_fib_init(fibptr);
1262
1263 sinfo = (struct aac_supplement_adapter_info *) fib_data(fibptr);
1264
1265 memset(sinfo,0,sizeof(*sinfo));
1266
1267 rcode = aac_fib_send(RequestSupplementAdapterInfo,
1268 fibptr,
1269 sizeof(*sinfo),
1270 FsaNormal,
1271 1, 1,
1272 NULL,
1273 NULL);
1274
1275 if (rcode >= 0)
1276 memcpy(&dev->supplement_adapter_info, sinfo, sizeof(*sinfo));
1277 }
1278
1279
1280 /*
1281 * GetBusInfo
1282 */
1283
1284 aac_fib_init(fibptr);
1285
1286 bus_info = (struct aac_bus_info_response *) fib_data(fibptr);
1287
1288 memset(bus_info, 0, sizeof(*bus_info));
1289
1290 command = (struct aac_bus_info *)bus_info;
1291
1292 command->Command = cpu_to_le32(VM_Ioctl);
1293 command->ObjType = cpu_to_le32(FT_DRIVE);
1294 command->MethodId = cpu_to_le32(1);
1295 command->CtlCmd = cpu_to_le32(GetBusInfo);
1296
1297 rcode = aac_fib_send(ContainerCommand,
1298 fibptr,
1299 sizeof (*bus_info),
1300 FsaNormal,
1301 1, 1,
1302 NULL, NULL);
1303
1304 /* reasoned default */
1305 dev->maximum_num_physicals = 16;
1306 if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
1307 dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
1308 dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
1309 }
1310
1311 if (!dev->in_reset) {
1312 char buffer[16];
1313 tmp = le32_to_cpu(dev->adapter_info.kernelrev);
1314 printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
1315 dev->name,
1316 dev->id,
1317 tmp>>24,
1318 (tmp>>16)&0xff,
1319 tmp&0xff,
1320 le32_to_cpu(dev->adapter_info.kernelbuild),
1321 (int)sizeof(dev->supplement_adapter_info.BuildDate),
1322 dev->supplement_adapter_info.BuildDate);
1323 tmp = le32_to_cpu(dev->adapter_info.monitorrev);
1324 printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
1325 dev->name, dev->id,
1326 tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1327 le32_to_cpu(dev->adapter_info.monitorbuild));
1328 tmp = le32_to_cpu(dev->adapter_info.biosrev);
1329 printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
1330 dev->name, dev->id,
1331 tmp>>24,(tmp>>16)&0xff,tmp&0xff,
1332 le32_to_cpu(dev->adapter_info.biosbuild));
1333 buffer[0] = '\0';
1334 if (aac_show_serial_number(
1335 shost_to_class(dev->scsi_host_ptr), buffer))
1336 printk(KERN_INFO "%s%d: serial %s",
1337 dev->name, dev->id, buffer);
1338 if (dev->supplement_adapter_info.VpdInfo.Tsid[0]) {
1339 printk(KERN_INFO "%s%d: TSID %.*s\n",
1340 dev->name, dev->id,
1341 (int)sizeof(dev->supplement_adapter_info.VpdInfo.Tsid),
1342 dev->supplement_adapter_info.VpdInfo.Tsid);
1343 }
1344 if (!aac_check_reset || ((aac_check_reset == 1) &&
1345 (dev->supplement_adapter_info.SupportedOptions2 &
1346 AAC_OPTION_IGNORE_RESET))) {
1347 printk(KERN_INFO "%s%d: Reset Adapter Ignored\n",
1348 dev->name, dev->id);
1349 }
1350 }
1351
1352 dev->cache_protected = 0;
1353 dev->jbod = ((dev->supplement_adapter_info.FeatureBits &
1354 AAC_FEATURE_JBOD) != 0);
1355 dev->nondasd_support = 0;
1356 dev->raid_scsi_mode = 0;
1357 if(dev->adapter_info.options & AAC_OPT_NONDASD)
1358 dev->nondasd_support = 1;
1359
1360 /*
1361 * If the firmware supports ROMB RAID/SCSI mode and we are currently
1362 * in RAID/SCSI mode, set the flag. For now if in this mode we will
1363 * force nondasd support on. If we decide to allow the non-dasd flag
1364 * additional changes changes will have to be made to support
1365 * RAID/SCSI. the function aac_scsi_cmd in this module will have to be
1366 * changed to support the new dev->raid_scsi_mode flag instead of
1367 * leaching off of the dev->nondasd_support flag. Also in linit.c the
1368 * function aac_detect will have to be modified where it sets up the
1369 * max number of channels based on the aac->nondasd_support flag only.
1370 */
1371 if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) &&
1372 (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) {
1373 dev->nondasd_support = 1;
1374 dev->raid_scsi_mode = 1;
1375 }
1376 if (dev->raid_scsi_mode != 0)
1377 printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
1378 dev->name, dev->id);
1379
1380 if (nondasd != -1)
1381 dev->nondasd_support = (nondasd!=0);
1382 if (dev->nondasd_support && !dev->in_reset)
1383 printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
1384
1385 dev->dac_support = 0;
1386 if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){
1387 if (!dev->in_reset)
1388 printk(KERN_INFO "%s%d: 64bit support enabled.\n",
1389 dev->name, dev->id);
1390 dev->dac_support = 1;
1391 }
1392
1393 if(dacmode != -1) {
1394 dev->dac_support = (dacmode!=0);
1395 }
1396 if(dev->dac_support != 0) {
1397 if (!pci_set_dma_mask(dev->pdev, DMA_64BIT_MASK) &&
1398 !pci_set_consistent_dma_mask(dev->pdev, DMA_64BIT_MASK)) {
1399 if (!dev->in_reset)
1400 printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
1401 dev->name, dev->id);
1402 } else if (!pci_set_dma_mask(dev->pdev, DMA_32BIT_MASK) &&
1403 !pci_set_consistent_dma_mask(dev->pdev, DMA_32BIT_MASK)) {
1404 printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
1405 dev->name, dev->id);
1406 dev->dac_support = 0;
1407 } else {
1408 printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
1409 dev->name, dev->id);
1410 rcode = -ENOMEM;
1411 }
1412 }
1413 /*
1414 * Deal with configuring for the individualized limits of each packet
1415 * interface.
1416 */
1417 dev->a_ops.adapter_scsi = (dev->dac_support)
1418 ? ((aac_get_driver_ident(dev->cardtype)->quirks & AAC_QUIRK_SCSI_32)
1419 ? aac_scsi_32_64
1420 : aac_scsi_64)
1421 : aac_scsi_32;
1422 if (dev->raw_io_interface) {
1423 dev->a_ops.adapter_bounds = (dev->raw_io_64)
1424 ? aac_bounds_64
1425 : aac_bounds_32;
1426 dev->a_ops.adapter_read = aac_read_raw_io;
1427 dev->a_ops.adapter_write = aac_write_raw_io;
1428 } else {
1429 dev->a_ops.adapter_bounds = aac_bounds_32;
1430 dev->scsi_host_ptr->sg_tablesize = (dev->max_fib_size -
1431 sizeof(struct aac_fibhdr) -
1432 sizeof(struct aac_write) + sizeof(struct sgentry)) /
1433 sizeof(struct sgentry);
1434 if (dev->dac_support) {
1435 dev->a_ops.adapter_read = aac_read_block64;
1436 dev->a_ops.adapter_write = aac_write_block64;
1437 /*
1438 * 38 scatter gather elements
1439 */
1440 dev->scsi_host_ptr->sg_tablesize =
1441 (dev->max_fib_size -
1442 sizeof(struct aac_fibhdr) -
1443 sizeof(struct aac_write64) +
1444 sizeof(struct sgentry64)) /
1445 sizeof(struct sgentry64);
1446 } else {
1447 dev->a_ops.adapter_read = aac_read_block;
1448 dev->a_ops.adapter_write = aac_write_block;
1449 }
1450 dev->scsi_host_ptr->max_sectors = AAC_MAX_32BIT_SGBCOUNT;
1451 if(!(dev->adapter_info.options & AAC_OPT_NEW_COMM)) {
1452 /*
1453 * Worst case size that could cause sg overflow when
1454 * we break up SG elements that are larger than 64KB.
1455 * Would be nice if we could tell the SCSI layer what
1456 * the maximum SG element size can be. Worst case is
1457 * (sg_tablesize-1) 4KB elements with one 64KB
1458 * element.
1459 * 32bit -> 468 or 238KB 64bit -> 424 or 212KB
1460 */
1461 dev->scsi_host_ptr->max_sectors =
1462 (dev->scsi_host_ptr->sg_tablesize * 8) + 112;
1463 }
1464 }
1465
1466 aac_fib_complete(fibptr);
1467 aac_fib_free(fibptr);
1468
1469 return rcode;
1470 }
1471
1472
1473 static void io_callback(void *context, struct fib * fibptr)
1474 {
1475 struct aac_dev *dev;
1476 struct aac_read_reply *readreply;
1477 struct scsi_cmnd *scsicmd;
1478 u32 cid;
1479
1480 scsicmd = (struct scsi_cmnd *) context;
1481
1482 if (!aac_valid_context(scsicmd, fibptr))
1483 return;
1484
1485 dev = fibptr->dev;
1486 cid = scmd_id(scsicmd);
1487
1488 if (nblank(dprintk(x))) {
1489 u64 lba;
1490 switch (scsicmd->cmnd[0]) {
1491 case WRITE_6:
1492 case READ_6:
1493 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1494 (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1495 break;
1496 case WRITE_16:
1497 case READ_16:
1498 lba = ((u64)scsicmd->cmnd[2] << 56) |
1499 ((u64)scsicmd->cmnd[3] << 48) |
1500 ((u64)scsicmd->cmnd[4] << 40) |
1501 ((u64)scsicmd->cmnd[5] << 32) |
1502 ((u64)scsicmd->cmnd[6] << 24) |
1503 (scsicmd->cmnd[7] << 16) |
1504 (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1505 break;
1506 case WRITE_12:
1507 case READ_12:
1508 lba = ((u64)scsicmd->cmnd[2] << 24) |
1509 (scsicmd->cmnd[3] << 16) |
1510 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1511 break;
1512 default:
1513 lba = ((u64)scsicmd->cmnd[2] << 24) |
1514 (scsicmd->cmnd[3] << 16) |
1515 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1516 break;
1517 }
1518 printk(KERN_DEBUG
1519 "io_callback[cpu %d]: lba = %llu, t = %ld.\n",
1520 smp_processor_id(), (unsigned long long)lba, jiffies);
1521 }
1522
1523 BUG_ON(fibptr == NULL);
1524
1525 scsi_dma_unmap(scsicmd);
1526
1527 readreply = (struct aac_read_reply *)fib_data(fibptr);
1528 if (le32_to_cpu(readreply->status) == ST_OK)
1529 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1530 else {
1531 #ifdef AAC_DETAILED_STATUS_INFO
1532 printk(KERN_WARNING "io_callback: io failed, status = %d\n",
1533 le32_to_cpu(readreply->status));
1534 #endif
1535 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1536 set_sense(&dev->fsa_dev[cid].sense_data,
1537 HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
1538 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
1539 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1540 min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1541 SCSI_SENSE_BUFFERSIZE));
1542 }
1543 aac_fib_complete(fibptr);
1544 aac_fib_free(fibptr);
1545
1546 scsicmd->scsi_done(scsicmd);
1547 }
1548
1549 static int aac_read(struct scsi_cmnd * scsicmd)
1550 {
1551 u64 lba;
1552 u32 count;
1553 int status;
1554 struct aac_dev *dev;
1555 struct fib * cmd_fibcontext;
1556
1557 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1558 /*
1559 * Get block address and transfer length
1560 */
1561 switch (scsicmd->cmnd[0]) {
1562 case READ_6:
1563 dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", scmd_id(scsicmd)));
1564
1565 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
1566 (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1567 count = scsicmd->cmnd[4];
1568
1569 if (count == 0)
1570 count = 256;
1571 break;
1572 case READ_16:
1573 dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", scmd_id(scsicmd)));
1574
1575 lba = ((u64)scsicmd->cmnd[2] << 56) |
1576 ((u64)scsicmd->cmnd[3] << 48) |
1577 ((u64)scsicmd->cmnd[4] << 40) |
1578 ((u64)scsicmd->cmnd[5] << 32) |
1579 ((u64)scsicmd->cmnd[6] << 24) |
1580 (scsicmd->cmnd[7] << 16) |
1581 (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1582 count = (scsicmd->cmnd[10] << 24) |
1583 (scsicmd->cmnd[11] << 16) |
1584 (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1585 break;
1586 case READ_12:
1587 dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", scmd_id(scsicmd)));
1588
1589 lba = ((u64)scsicmd->cmnd[2] << 24) |
1590 (scsicmd->cmnd[3] << 16) |
1591 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1592 count = (scsicmd->cmnd[6] << 24) |
1593 (scsicmd->cmnd[7] << 16) |
1594 (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1595 break;
1596 default:
1597 dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", scmd_id(scsicmd)));
1598
1599 lba = ((u64)scsicmd->cmnd[2] << 24) |
1600 (scsicmd->cmnd[3] << 16) |
1601 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1602 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1603 break;
1604 }
1605 dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %llu, t = %ld.\n",
1606 smp_processor_id(), (unsigned long long)lba, jiffies));
1607 if (aac_adapter_bounds(dev,scsicmd,lba))
1608 return 0;
1609 /*
1610 * Alocate and initialize a Fib
1611 */
1612 if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1613 return -1;
1614 }
1615
1616 status = aac_adapter_read(cmd_fibcontext, scsicmd, lba, count);
1617
1618 /*
1619 * Check that the command queued to the controller
1620 */
1621 if (status == -EINPROGRESS) {
1622 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1623 return 0;
1624 }
1625
1626 printk(KERN_WARNING "aac_read: aac_fib_send failed with status: %d.\n", status);
1627 /*
1628 * For some reason, the Fib didn't queue, return QUEUE_FULL
1629 */
1630 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1631 scsicmd->scsi_done(scsicmd);
1632 aac_fib_complete(cmd_fibcontext);
1633 aac_fib_free(cmd_fibcontext);
1634 return 0;
1635 }
1636
1637 static int aac_write(struct scsi_cmnd * scsicmd)
1638 {
1639 u64 lba;
1640 u32 count;
1641 int fua;
1642 int status;
1643 struct aac_dev *dev;
1644 struct fib * cmd_fibcontext;
1645
1646 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
1647 /*
1648 * Get block address and transfer length
1649 */
1650 if (scsicmd->cmnd[0] == WRITE_6) /* 6 byte command */
1651 {
1652 lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
1653 count = scsicmd->cmnd[4];
1654 if (count == 0)
1655 count = 256;
1656 fua = 0;
1657 } else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
1658 dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", scmd_id(scsicmd)));
1659
1660 lba = ((u64)scsicmd->cmnd[2] << 56) |
1661 ((u64)scsicmd->cmnd[3] << 48) |
1662 ((u64)scsicmd->cmnd[4] << 40) |
1663 ((u64)scsicmd->cmnd[5] << 32) |
1664 ((u64)scsicmd->cmnd[6] << 24) |
1665 (scsicmd->cmnd[7] << 16) |
1666 (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1667 count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
1668 (scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
1669 fua = scsicmd->cmnd[1] & 0x8;
1670 } else if (scsicmd->cmnd[0] == WRITE_12) { /* 12 byte command */
1671 dprintk((KERN_DEBUG "aachba: received a write(12) command on id %d.\n", scmd_id(scsicmd)));
1672
1673 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16)
1674 | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1675 count = (scsicmd->cmnd[6] << 24) | (scsicmd->cmnd[7] << 16)
1676 | (scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
1677 fua = scsicmd->cmnd[1] & 0x8;
1678 } else {
1679 dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", scmd_id(scsicmd)));
1680 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1681 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1682 fua = scsicmd->cmnd[1] & 0x8;
1683 }
1684 dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %llu, t = %ld.\n",
1685 smp_processor_id(), (unsigned long long)lba, jiffies));
1686 if (aac_adapter_bounds(dev,scsicmd,lba))
1687 return 0;
1688 /*
1689 * Allocate and initialize a Fib then setup a BlockWrite command
1690 */
1691 if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
1692 scsicmd->result = DID_ERROR << 16;
1693 scsicmd->scsi_done(scsicmd);
1694 return 0;
1695 }
1696
1697 status = aac_adapter_write(cmd_fibcontext, scsicmd, lba, count, fua);
1698
1699 /*
1700 * Check that the command queued to the controller
1701 */
1702 if (status == -EINPROGRESS) {
1703 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1704 return 0;
1705 }
1706
1707 printk(KERN_WARNING "aac_write: aac_fib_send failed with status: %d\n", status);
1708 /*
1709 * For some reason, the Fib didn't queue, return QUEUE_FULL
1710 */
1711 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL;
1712 scsicmd->scsi_done(scsicmd);
1713
1714 aac_fib_complete(cmd_fibcontext);
1715 aac_fib_free(cmd_fibcontext);
1716 return 0;
1717 }
1718
1719 static void synchronize_callback(void *context, struct fib *fibptr)
1720 {
1721 struct aac_synchronize_reply *synchronizereply;
1722 struct scsi_cmnd *cmd;
1723
1724 cmd = context;
1725
1726 if (!aac_valid_context(cmd, fibptr))
1727 return;
1728
1729 dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n",
1730 smp_processor_id(), jiffies));
1731 BUG_ON(fibptr == NULL);
1732
1733
1734 synchronizereply = fib_data(fibptr);
1735 if (le32_to_cpu(synchronizereply->status) == CT_OK)
1736 cmd->result = DID_OK << 16 |
1737 COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1738 else {
1739 struct scsi_device *sdev = cmd->device;
1740 struct aac_dev *dev = fibptr->dev;
1741 u32 cid = sdev_id(sdev);
1742 printk(KERN_WARNING
1743 "synchronize_callback: synchronize failed, status = %d\n",
1744 le32_to_cpu(synchronizereply->status));
1745 cmd->result = DID_OK << 16 |
1746 COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1747 set_sense(&dev->fsa_dev[cid].sense_data,
1748 HARDWARE_ERROR, SENCODE_INTERNAL_TARGET_FAILURE,
1749 ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0);
1750 memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1751 min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1752 SCSI_SENSE_BUFFERSIZE));
1753 }
1754
1755 aac_fib_complete(fibptr);
1756 aac_fib_free(fibptr);
1757 cmd->scsi_done(cmd);
1758 }
1759
1760 static int aac_synchronize(struct scsi_cmnd *scsicmd)
1761 {
1762 int status;
1763 struct fib *cmd_fibcontext;
1764 struct aac_synchronize *synchronizecmd;
1765 struct scsi_cmnd *cmd;
1766 struct scsi_device *sdev = scsicmd->device;
1767 int active = 0;
1768 struct aac_dev *aac;
1769 u64 lba = ((u64)scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) |
1770 (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
1771 u32 count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
1772 unsigned long flags;
1773
1774 /*
1775 * Wait for all outstanding queued commands to complete to this
1776 * specific target (block).
1777 */
1778 spin_lock_irqsave(&sdev->list_lock, flags);
1779 list_for_each_entry(cmd, &sdev->cmd_list, list)
1780 if (cmd->SCp.phase == AAC_OWNER_FIRMWARE) {
1781 u64 cmnd_lba;
1782 u32 cmnd_count;
1783
1784 if (cmd->cmnd[0] == WRITE_6) {
1785 cmnd_lba = ((cmd->cmnd[1] & 0x1F) << 16) |
1786 (cmd->cmnd[2] << 8) |
1787 cmd->cmnd[3];
1788 cmnd_count = cmd->cmnd[4];
1789 if (cmnd_count == 0)
1790 cmnd_count = 256;
1791 } else if (cmd->cmnd[0] == WRITE_16) {
1792 cmnd_lba = ((u64)cmd->cmnd[2] << 56) |
1793 ((u64)cmd->cmnd[3] << 48) |
1794 ((u64)cmd->cmnd[4] << 40) |
1795 ((u64)cmd->cmnd[5] << 32) |
1796 ((u64)cmd->cmnd[6] << 24) |
1797 (cmd->cmnd[7] << 16) |
1798 (cmd->cmnd[8] << 8) |
1799 cmd->cmnd[9];
1800 cmnd_count = (cmd->cmnd[10] << 24) |
1801 (cmd->cmnd[11] << 16) |
1802 (cmd->cmnd[12] << 8) |
1803 cmd->cmnd[13];
1804 } else if (cmd->cmnd[0] == WRITE_12) {
1805 cmnd_lba = ((u64)cmd->cmnd[2] << 24) |
1806 (cmd->cmnd[3] << 16) |
1807 (cmd->cmnd[4] << 8) |
1808 cmd->cmnd[5];
1809 cmnd_count = (cmd->cmnd[6] << 24) |
1810 (cmd->cmnd[7] << 16) |
1811 (cmd->cmnd[8] << 8) |
1812 cmd->cmnd[9];
1813 } else if (cmd->cmnd[0] == WRITE_10) {
1814 cmnd_lba = ((u64)cmd->cmnd[2] << 24) |
1815 (cmd->cmnd[3] << 16) |
1816 (cmd->cmnd[4] << 8) |
1817 cmd->cmnd[5];
1818 cmnd_count = (cmd->cmnd[7] << 8) |
1819 cmd->cmnd[8];
1820 } else
1821 continue;
1822 if (((cmnd_lba + cmnd_count) < lba) ||
1823 (count && ((lba + count) < cmnd_lba)))
1824 continue;
1825 ++active;
1826 break;
1827 }
1828
1829 spin_unlock_irqrestore(&sdev->list_lock, flags);
1830
1831 /*
1832 * Yield the processor (requeue for later)
1833 */
1834 if (active)
1835 return SCSI_MLQUEUE_DEVICE_BUSY;
1836
1837 aac = (struct aac_dev *)sdev->host->hostdata;
1838 if (aac->in_reset)
1839 return SCSI_MLQUEUE_HOST_BUSY;
1840
1841 /*
1842 * Allocate and initialize a Fib
1843 */
1844 if (!(cmd_fibcontext = aac_fib_alloc(aac)))
1845 return SCSI_MLQUEUE_HOST_BUSY;
1846
1847 aac_fib_init(cmd_fibcontext);
1848
1849 synchronizecmd = fib_data(cmd_fibcontext);
1850 synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
1851 synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
1852 synchronizecmd->cid = cpu_to_le32(scmd_id(scsicmd));
1853 synchronizecmd->count =
1854 cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
1855
1856 /*
1857 * Now send the Fib to the adapter
1858 */
1859 status = aac_fib_send(ContainerCommand,
1860 cmd_fibcontext,
1861 sizeof(struct aac_synchronize),
1862 FsaNormal,
1863 0, 1,
1864 (fib_callback)synchronize_callback,
1865 (void *)scsicmd);
1866
1867 /*
1868 * Check that the command queued to the controller
1869 */
1870 if (status == -EINPROGRESS) {
1871 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
1872 return 0;
1873 }
1874
1875 printk(KERN_WARNING
1876 "aac_synchronize: aac_fib_send failed with status: %d.\n", status);
1877 aac_fib_complete(cmd_fibcontext);
1878 aac_fib_free(cmd_fibcontext);
1879 return SCSI_MLQUEUE_HOST_BUSY;
1880 }
1881
1882 /**
1883 * aac_scsi_cmd() - Process SCSI command
1884 * @scsicmd: SCSI command block
1885 *
1886 * Emulate a SCSI command and queue the required request for the
1887 * aacraid firmware.
1888 */
1889
1890 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
1891 {
1892 u32 cid;
1893 struct Scsi_Host *host = scsicmd->device->host;
1894 struct aac_dev *dev = (struct aac_dev *)host->hostdata;
1895 struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
1896
1897 if (fsa_dev_ptr == NULL)
1898 return -1;
1899 /*
1900 * If the bus, id or lun is out of range, return fail
1901 * Test does not apply to ID 16, the pseudo id for the controller
1902 * itself.
1903 */
1904 cid = scmd_id(scsicmd);
1905 if (cid != host->this_id) {
1906 if (scmd_channel(scsicmd) == CONTAINER_CHANNEL) {
1907 if((cid >= dev->maximum_num_containers) ||
1908 (scsicmd->device->lun != 0)) {
1909 scsicmd->result = DID_NO_CONNECT << 16;
1910 scsicmd->scsi_done(scsicmd);
1911 return 0;
1912 }
1913
1914 /*
1915 * If the target container doesn't exist, it may have
1916 * been newly created
1917 */
1918 if ((fsa_dev_ptr[cid].valid & 1) == 0) {
1919 switch (scsicmd->cmnd[0]) {
1920 case SERVICE_ACTION_IN:
1921 if (!(dev->raw_io_interface) ||
1922 !(dev->raw_io_64) ||
1923 ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
1924 break;
1925 case INQUIRY:
1926 case READ_CAPACITY:
1927 case TEST_UNIT_READY:
1928 if (dev->in_reset)
1929 return -1;
1930 return _aac_probe_container(scsicmd,
1931 aac_probe_container_callback2);
1932 default:
1933 break;
1934 }
1935 }
1936 } else { /* check for physical non-dasd devices */
1937 if (dev->nondasd_support || expose_physicals ||
1938 dev->jbod) {
1939 if (dev->in_reset)
1940 return -1;
1941 return aac_send_srb_fib(scsicmd);
1942 } else {
1943 scsicmd->result = DID_NO_CONNECT << 16;
1944 scsicmd->scsi_done(scsicmd);
1945 return 0;
1946 }
1947 }
1948 }
1949 /*
1950 * else Command for the controller itself
1951 */
1952 else if ((scsicmd->cmnd[0] != INQUIRY) && /* only INQUIRY & TUR cmnd supported for controller */
1953 (scsicmd->cmnd[0] != TEST_UNIT_READY))
1954 {
1955 dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
1956 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
1957 set_sense(&dev->fsa_dev[cid].sense_data,
1958 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
1959 ASENCODE_INVALID_COMMAND, 0, 0);
1960 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
1961 min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
1962 SCSI_SENSE_BUFFERSIZE));
1963 scsicmd->scsi_done(scsicmd);
1964 return 0;
1965 }
1966
1967
1968 /* Handle commands here that don't really require going out to the adapter */
1969 switch (scsicmd->cmnd[0]) {
1970 case INQUIRY:
1971 {
1972 struct inquiry_data inq_data;
1973
1974 dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", cid));
1975 memset(&inq_data, 0, sizeof (struct inquiry_data));
1976
1977 if (scsicmd->cmnd[1] & 0x1) {
1978 char *arr = (char *)&inq_data;
1979
1980 /* EVPD bit set */
1981 arr[0] = (scmd_id(scsicmd) == host->this_id) ?
1982 INQD_PDT_PROC : INQD_PDT_DA;
1983 if (scsicmd->cmnd[2] == 0) {
1984 /* supported vital product data pages */
1985 arr[3] = 2;
1986 arr[4] = 0x0;
1987 arr[5] = 0x80;
1988 arr[1] = scsicmd->cmnd[2];
1989 aac_internal_transfer(scsicmd, &inq_data, 0,
1990 sizeof(inq_data));
1991 scsicmd->result = DID_OK << 16 |
1992 COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
1993 } else if (scsicmd->cmnd[2] == 0x80) {
1994 /* unit serial number page */
1995 arr[3] = setinqserial(dev, &arr[4],
1996 scmd_id(scsicmd));
1997 arr[1] = scsicmd->cmnd[2];
1998 aac_internal_transfer(scsicmd, &inq_data, 0,
1999 sizeof(inq_data));
2000 return aac_get_container_serial(scsicmd);
2001 } else {
2002 /* vpd page not implemented */
2003 scsicmd->result = DID_OK << 16 |
2004 COMMAND_COMPLETE << 8 |
2005 SAM_STAT_CHECK_CONDITION;
2006 set_sense(&dev->fsa_dev[cid].sense_data,
2007 ILLEGAL_REQUEST, SENCODE_INVALID_CDB_FIELD,
2008 ASENCODE_NO_SENSE, 7, 2);
2009 memcpy(scsicmd->sense_buffer,
2010 &dev->fsa_dev[cid].sense_data,
2011 min_t(size_t,
2012 sizeof(dev->fsa_dev[cid].sense_data),
2013 SCSI_SENSE_BUFFERSIZE));
2014 }
2015 scsicmd->scsi_done(scsicmd);
2016 return 0;
2017 }
2018 inq_data.inqd_ver = 2; /* claim compliance to SCSI-2 */
2019 inq_data.inqd_rdf = 2; /* A response data format value of two indicates that the data shall be in the format specified in SCSI-2 */
2020 inq_data.inqd_len = 31;
2021 /*Format for "pad2" is RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */
2022 inq_data.inqd_pad2= 0x32 ; /*WBus16|Sync|CmdQue */
2023 /*
2024 * Set the Vendor, Product, and Revision Level
2025 * see: <vendor>.c i.e. aac.c
2026 */
2027 if (cid == host->this_id) {
2028 setinqstr(dev, (void *) (inq_data.inqd_vid), ARRAY_SIZE(container_types));
2029 inq_data.inqd_pdt = INQD_PDT_PROC; /* Processor device */
2030 aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
2031 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2032 scsicmd->scsi_done(scsicmd);
2033 return 0;
2034 }
2035 if (dev->in_reset)
2036 return -1;
2037 setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
2038 inq_data.inqd_pdt = INQD_PDT_DA; /* Direct/random access device */
2039 aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
2040 return aac_get_container_name(scsicmd);
2041 }
2042 case SERVICE_ACTION_IN:
2043 if (!(dev->raw_io_interface) ||
2044 !(dev->raw_io_64) ||
2045 ((scsicmd->cmnd[1] & 0x1f) != SAI_READ_CAPACITY_16))
2046 break;
2047 {
2048 u64 capacity;
2049 char cp[13];
2050
2051 dprintk((KERN_DEBUG "READ CAPACITY_16 command.\n"));
2052 capacity = fsa_dev_ptr[cid].size - 1;
2053 cp[0] = (capacity >> 56) & 0xff;
2054 cp[1] = (capacity >> 48) & 0xff;
2055 cp[2] = (capacity >> 40) & 0xff;
2056 cp[3] = (capacity >> 32) & 0xff;
2057 cp[4] = (capacity >> 24) & 0xff;
2058 cp[5] = (capacity >> 16) & 0xff;
2059 cp[6] = (capacity >> 8) & 0xff;
2060 cp[7] = (capacity >> 0) & 0xff;
2061 cp[8] = 0;
2062 cp[9] = 0;
2063 cp[10] = 2;
2064 cp[11] = 0;
2065 cp[12] = 0;
2066 aac_internal_transfer(scsicmd, cp, 0,
2067 min_t(size_t, scsicmd->cmnd[13], sizeof(cp)));
2068 if (sizeof(cp) < scsicmd->cmnd[13]) {
2069 unsigned int len, offset = sizeof(cp);
2070
2071 memset(cp, 0, offset);
2072 do {
2073 len = min_t(size_t, scsicmd->cmnd[13] - offset,
2074 sizeof(cp));
2075 aac_internal_transfer(scsicmd, cp, offset, len);
2076 } while ((offset += len) < scsicmd->cmnd[13]);
2077 }
2078
2079 /* Do not cache partition table for arrays */
2080 scsicmd->device->removable = 1;
2081
2082 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2083 scsicmd->scsi_done(scsicmd);
2084
2085 return 0;
2086 }
2087
2088 case READ_CAPACITY:
2089 {
2090 u32 capacity;
2091 char cp[8];
2092
2093 dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
2094 if (fsa_dev_ptr[cid].size <= 0x100000000ULL)
2095 capacity = fsa_dev_ptr[cid].size - 1;
2096 else
2097 capacity = (u32)-1;
2098
2099 cp[0] = (capacity >> 24) & 0xff;
2100 cp[1] = (capacity >> 16) & 0xff;
2101 cp[2] = (capacity >> 8) & 0xff;
2102 cp[3] = (capacity >> 0) & 0xff;
2103 cp[4] = 0;
2104 cp[5] = 0;
2105 cp[6] = 2;
2106 cp[7] = 0;
2107 aac_internal_transfer(scsicmd, cp, 0, sizeof(cp));
2108 /* Do not cache partition table for arrays */
2109 scsicmd->device->removable = 1;
2110
2111 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2112 scsicmd->scsi_done(scsicmd);
2113
2114 return 0;
2115 }
2116
2117 case MODE_SENSE:
2118 {
2119 char mode_buf[7];
2120 int mode_buf_length = 4;
2121
2122 dprintk((KERN_DEBUG "MODE SENSE command.\n"));
2123 mode_buf[0] = 3; /* Mode data length */
2124 mode_buf[1] = 0; /* Medium type - default */
2125 mode_buf[2] = 0; /* Device-specific param,
2126 bit 8: 0/1 = write enabled/protected
2127 bit 4: 0/1 = FUA enabled */
2128 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2129 mode_buf[2] = 0x10;
2130 mode_buf[3] = 0; /* Block descriptor length */
2131 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2132 ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2133 mode_buf[0] = 6;
2134 mode_buf[4] = 8;
2135 mode_buf[5] = 1;
2136 mode_buf[6] = ((aac_cache & 6) == 2)
2137 ? 0 : 0x04; /* WCE */
2138 mode_buf_length = 7;
2139 if (mode_buf_length > scsicmd->cmnd[4])
2140 mode_buf_length = scsicmd->cmnd[4];
2141 }
2142 aac_internal_transfer(scsicmd, mode_buf, 0, mode_buf_length);
2143 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2144 scsicmd->scsi_done(scsicmd);
2145
2146 return 0;
2147 }
2148 case MODE_SENSE_10:
2149 {
2150 char mode_buf[11];
2151 int mode_buf_length = 8;
2152
2153 dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n"));
2154 mode_buf[0] = 0; /* Mode data length (MSB) */
2155 mode_buf[1] = 6; /* Mode data length (LSB) */
2156 mode_buf[2] = 0; /* Medium type - default */
2157 mode_buf[3] = 0; /* Device-specific param,
2158 bit 8: 0/1 = write enabled/protected
2159 bit 4: 0/1 = FUA enabled */
2160 if (dev->raw_io_interface && ((aac_cache & 5) != 1))
2161 mode_buf[3] = 0x10;
2162 mode_buf[4] = 0; /* reserved */
2163 mode_buf[5] = 0; /* reserved */
2164 mode_buf[6] = 0; /* Block descriptor length (MSB) */
2165 mode_buf[7] = 0; /* Block descriptor length (LSB) */
2166 if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
2167 ((scsicmd->cmnd[2] & 0x3f) == 0x3f)) {
2168 mode_buf[1] = 9;
2169 mode_buf[8] = 8;
2170 mode_buf[9] = 1;
2171 mode_buf[10] = ((aac_cache & 6) == 2)
2172 ? 0 : 0x04; /* WCE */
2173 mode_buf_length = 11;
2174 if (mode_buf_length > scsicmd->cmnd[8])
2175 mode_buf_length = scsicmd->cmnd[8];
2176 }
2177 aac_internal_transfer(scsicmd, mode_buf, 0, mode_buf_length);
2178
2179 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2180 scsicmd->scsi_done(scsicmd);
2181
2182 return 0;
2183 }
2184 case REQUEST_SENSE:
2185 dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
2186 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data));
2187 memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data));
2188 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2189 scsicmd->scsi_done(scsicmd);
2190 return 0;
2191
2192 case ALLOW_MEDIUM_REMOVAL:
2193 dprintk((KERN_DEBUG "LOCK command.\n"));
2194 if (scsicmd->cmnd[4])
2195 fsa_dev_ptr[cid].locked = 1;
2196 else
2197 fsa_dev_ptr[cid].locked = 0;
2198
2199 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2200 scsicmd->scsi_done(scsicmd);
2201 return 0;
2202 /*
2203 * These commands are all No-Ops
2204 */
2205 case TEST_UNIT_READY:
2206 case RESERVE:
2207 case RELEASE:
2208 case REZERO_UNIT:
2209 case REASSIGN_BLOCKS:
2210 case SEEK_10:
2211 case START_STOP:
2212 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2213 scsicmd->scsi_done(scsicmd);
2214 return 0;
2215 }
2216
2217 switch (scsicmd->cmnd[0])
2218 {
2219 case READ_6:
2220 case READ_10:
2221 case READ_12:
2222 case READ_16:
2223 if (dev->in_reset)
2224 return -1;
2225 /*
2226 * Hack to keep track of ordinal number of the device that
2227 * corresponds to a container. Needed to convert
2228 * containers to /dev/sd device names
2229 */
2230
2231 if (scsicmd->request->rq_disk)
2232 strlcpy(fsa_dev_ptr[cid].devname,
2233 scsicmd->request->rq_disk->disk_name,
2234 min(sizeof(fsa_dev_ptr[cid].devname),
2235 sizeof(scsicmd->request->rq_disk->disk_name) + 1));
2236
2237 return aac_read(scsicmd);
2238
2239 case WRITE_6:
2240 case WRITE_10:
2241 case WRITE_12:
2242 case WRITE_16:
2243 if (dev->in_reset)
2244 return -1;
2245 return aac_write(scsicmd);
2246
2247 case SYNCHRONIZE_CACHE:
2248 if (((aac_cache & 6) == 6) && dev->cache_protected) {
2249 scsicmd->result = DID_OK << 16 |
2250 COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
2251 scsicmd->scsi_done(scsicmd);
2252 return 0;
2253 }
2254 /* Issue FIB to tell Firmware to flush it's cache */
2255 if ((aac_cache & 6) != 2)
2256 return aac_synchronize(scsicmd);
2257 /* FALLTHRU */
2258 default:
2259 /*
2260 * Unhandled commands
2261 */
2262 dprintk((KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]));
2263 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2264 set_sense(&dev->fsa_dev[cid].sense_data,
2265 ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
2266 ASENCODE_INVALID_COMMAND, 0, 0);
2267 memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
2268 min_t(size_t,
2269 sizeof(dev->fsa_dev[cid].sense_data),
2270 SCSI_SENSE_BUFFERSIZE));
2271 scsicmd->scsi_done(scsicmd);
2272 return 0;
2273 }
2274 }
2275
2276 static int query_disk(struct aac_dev *dev, void __user *arg)
2277 {
2278 struct aac_query_disk qd;
2279 struct fsa_dev_info *fsa_dev_ptr;
2280
2281 fsa_dev_ptr = dev->fsa_dev;
2282 if (!fsa_dev_ptr)
2283 return -EBUSY;
2284 if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
2285 return -EFAULT;
2286 if (qd.cnum == -1)
2287 qd.cnum = qd.id;
2288 else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
2289 {
2290 if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
2291 return -EINVAL;
2292 qd.instance = dev->scsi_host_ptr->host_no;
2293 qd.bus = 0;
2294 qd.id = CONTAINER_TO_ID(qd.cnum);
2295 qd.lun = CONTAINER_TO_LUN(qd.cnum);
2296 }
2297 else return -EINVAL;
2298
2299 qd.valid = fsa_dev_ptr[qd.cnum].valid != 0;
2300 qd.locked = fsa_dev_ptr[qd.cnum].locked;
2301 qd.deleted = fsa_dev_ptr[qd.cnum].deleted;
2302
2303 if (fsa_dev_ptr[qd.cnum].devname[0] == '\0')
2304 qd.unmapped = 1;
2305 else
2306 qd.unmapped = 0;
2307
2308 strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname,
2309 min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1));
2310
2311 if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
2312 return -EFAULT;
2313 return 0;
2314 }
2315
2316 static int force_delete_disk(struct aac_dev *dev, void __user *arg)
2317 {
2318 struct aac_delete_disk dd;
2319 struct fsa_dev_info *fsa_dev_ptr;
2320
2321 fsa_dev_ptr = dev->fsa_dev;
2322 if (!fsa_dev_ptr)
2323 return -EBUSY;
2324
2325 if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2326 return -EFAULT;
2327
2328 if (dd.cnum >= dev->maximum_num_containers)
2329 return -EINVAL;
2330 /*
2331 * Mark this container as being deleted.
2332 */
2333 fsa_dev_ptr[dd.cnum].deleted = 1;
2334 /*
2335 * Mark the container as no longer valid
2336 */
2337 fsa_dev_ptr[dd.cnum].valid = 0;
2338 return 0;
2339 }
2340
2341 static int delete_disk(struct aac_dev *dev, void __user *arg)
2342 {
2343 struct aac_delete_disk dd;
2344 struct fsa_dev_info *fsa_dev_ptr;
2345
2346 fsa_dev_ptr = dev->fsa_dev;
2347 if (!fsa_dev_ptr)
2348 return -EBUSY;
2349
2350 if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
2351 return -EFAULT;
2352
2353 if (dd.cnum >= dev->maximum_num_containers)
2354 return -EINVAL;
2355 /*
2356 * If the container is locked, it can not be deleted by the API.
2357 */
2358 if (fsa_dev_ptr[dd.cnum].locked)
2359 return -EBUSY;
2360 else {
2361 /*
2362 * Mark the container as no longer being valid.
2363 */
2364 fsa_dev_ptr[dd.cnum].valid = 0;
2365 fsa_dev_ptr[dd.cnum].devname[0] = '\0';
2366 return 0;
2367 }
2368 }
2369
2370 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg)
2371 {
2372 switch (cmd) {
2373 case FSACTL_QUERY_DISK:
2374 return query_disk(dev, arg);
2375 case FSACTL_DELETE_DISK:
2376 return delete_disk(dev, arg);
2377 case FSACTL_FORCE_DELETE_DISK:
2378 return force_delete_disk(dev, arg);
2379 case FSACTL_GET_CONTAINERS:
2380 return aac_get_containers(dev);
2381 default:
2382 return -ENOTTY;
2383 }
2384 }
2385
2386 /**
2387 *
2388 * aac_srb_callback
2389 * @context: the context set in the fib - here it is scsi cmd
2390 * @fibptr: pointer to the fib
2391 *
2392 * Handles the completion of a scsi command to a non dasd device
2393 *
2394 */
2395
2396 static void aac_srb_callback(void *context, struct fib * fibptr)
2397 {
2398 struct aac_dev *dev;
2399 struct aac_srb_reply *srbreply;
2400 struct scsi_cmnd *scsicmd;
2401
2402 scsicmd = (struct scsi_cmnd *) context;
2403
2404 if (!aac_valid_context(scsicmd, fibptr))
2405 return;
2406
2407 BUG_ON(fibptr == NULL);
2408
2409 dev = fibptr->dev;
2410
2411 srbreply = (struct aac_srb_reply *) fib_data(fibptr);
2412
2413 scsicmd->sense_buffer[0] = '\0'; /* Initialize sense valid flag to false */
2414 /*
2415 * Calculate resid for sg
2416 */
2417
2418 scsi_set_resid(scsicmd, scsi_bufflen(scsicmd)
2419 - le32_to_cpu(srbreply->data_xfer_length));
2420
2421 scsi_dma_unmap(scsicmd);
2422
2423 /*
2424 * First check the fib status
2425 */
2426
2427 if (le32_to_cpu(srbreply->status) != ST_OK){
2428 int len;
2429 printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
2430 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
2431 SCSI_SENSE_BUFFERSIZE);
2432 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
2433 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2434 }
2435
2436 /*
2437 * Next check the srb status
2438 */
2439 switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
2440 case SRB_STATUS_ERROR_RECOVERY:
2441 case SRB_STATUS_PENDING:
2442 case SRB_STATUS_SUCCESS:
2443 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2444 break;
2445 case SRB_STATUS_DATA_OVERRUN:
2446 switch(scsicmd->cmnd[0]){
2447 case READ_6:
2448 case WRITE_6:
2449 case READ_10:
2450 case WRITE_10:
2451 case READ_12:
2452 case WRITE_12:
2453 case READ_16:
2454 case WRITE_16:
2455 if (le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow) {
2456 printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
2457 } else {
2458 printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
2459 }
2460 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2461 break;
2462 case INQUIRY: {
2463 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2464 break;
2465 }
2466 default:
2467 scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
2468 break;
2469 }
2470 break;
2471 case SRB_STATUS_ABORTED:
2472 scsicmd->result = DID_ABORT << 16 | ABORT << 8;
2473 break;
2474 case SRB_STATUS_ABORT_FAILED:
2475 // Not sure about this one - but assuming the hba was trying to abort for some reason
2476 scsicmd->result = DID_ERROR << 16 | ABORT << 8;
2477 break;
2478 case SRB_STATUS_PARITY_ERROR:
2479 scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
2480 break;
2481 case SRB_STATUS_NO_DEVICE:
2482 case SRB_STATUS_INVALID_PATH_ID:
2483 case SRB_STATUS_INVALID_TARGET_ID:
2484 case SRB_STATUS_INVALID_LUN:
2485 case SRB_STATUS_SELECTION_TIMEOUT:
2486 scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
2487 break;
2488
2489 case SRB_STATUS_COMMAND_TIMEOUT:
2490 case SRB_STATUS_TIMEOUT:
2491 scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
2492 break;
2493
2494 case SRB_STATUS_BUSY:
2495 scsicmd->result = DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8;
2496 break;
2497
2498 case SRB_STATUS_BUS_RESET:
2499 scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
2500 break;
2501
2502 case SRB_STATUS_MESSAGE_REJECTED:
2503 scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
2504 break;
2505 case SRB_STATUS_REQUEST_FLUSHED:
2506 case SRB_STATUS_ERROR:
2507 case SRB_STATUS_INVALID_REQUEST:
2508 case SRB_STATUS_REQUEST_SENSE_FAILED:
2509 case SRB_STATUS_NO_HBA:
2510 case SRB_STATUS_UNEXPECTED_BUS_FREE:
2511 case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
2512 case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
2513 case SRB_STATUS_DELAYED_RETRY:
2514 case SRB_STATUS_BAD_FUNCTION:
2515 case SRB_STATUS_NOT_STARTED:
2516 case SRB_STATUS_NOT_IN_USE:
2517 case SRB_STATUS_FORCE_ABORT:
2518 case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
2519 default:
2520 #ifdef AAC_DETAILED_STATUS_INFO
2521 printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
2522 le32_to_cpu(srbreply->srb_status) & 0x3F,
2523 aac_get_status_string(
2524 le32_to_cpu(srbreply->srb_status) & 0x3F),
2525 scsicmd->cmnd[0],
2526 le32_to_cpu(srbreply->scsi_status));
2527 #endif
2528 scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
2529 break;
2530 }
2531 if (le32_to_cpu(srbreply->scsi_status) == SAM_STAT_CHECK_CONDITION) {
2532 int len;
2533 scsicmd->result |= SAM_STAT_CHECK_CONDITION;
2534 len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
2535 SCSI_SENSE_BUFFERSIZE);
2536 #ifdef AAC_DETAILED_STATUS_INFO
2537 printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
2538 le32_to_cpu(srbreply->status), len);
2539 #endif
2540 memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
2541 }
2542 /*
2543 * OR in the scsi status (already shifted up a bit)
2544 */
2545 scsicmd->result |= le32_to_cpu(srbreply->scsi_status);
2546
2547 aac_fib_complete(fibptr);
2548 aac_fib_free(fibptr);
2549 scsicmd->scsi_done(scsicmd);
2550 }
2551
2552 /**
2553 *
2554 * aac_send_scb_fib
2555 * @scsicmd: the scsi command block
2556 *
2557 * This routine will form a FIB and fill in the aac_srb from the
2558 * scsicmd passed in.
2559 */
2560
2561 static int aac_send_srb_fib(struct scsi_cmnd* scsicmd)
2562 {
2563 struct fib* cmd_fibcontext;
2564 struct aac_dev* dev;
2565 int status;
2566
2567 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2568 if (scmd_id(scsicmd) >= dev->maximum_num_physicals ||
2569 scsicmd->device->lun > 7) {
2570 scsicmd->result = DID_NO_CONNECT << 16;
2571 scsicmd->scsi_done(scsicmd);
2572 return 0;
2573 }
2574
2575 /*
2576 * Allocate and initialize a Fib then setup a BlockWrite command
2577 */
2578 if (!(cmd_fibcontext = aac_fib_alloc(dev))) {
2579 return -1;
2580 }
2581 status = aac_adapter_scsi(cmd_fibcontext, scsicmd);
2582
2583 /*
2584 * Check that the command queued to the controller
2585 */
2586 if (status == -EINPROGRESS) {
2587 scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
2588 return 0;
2589 }
2590
2591 printk(KERN_WARNING "aac_srb: aac_fib_send failed with status: %d\n", status);
2592 aac_fib_complete(cmd_fibcontext);
2593 aac_fib_free(cmd_fibcontext);
2594
2595 return -1;
2596 }
2597
2598 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg)
2599 {
2600 struct aac_dev *dev;
2601 unsigned long byte_count = 0;
2602 int nseg;
2603
2604 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2605 // Get rid of old data
2606 psg->count = 0;
2607 psg->sg[0].addr = 0;
2608 psg->sg[0].count = 0;
2609
2610 nseg = scsi_dma_map(scsicmd);
2611 BUG_ON(nseg < 0);
2612 if (nseg) {
2613 struct scatterlist *sg;
2614 int i;
2615
2616 psg->count = cpu_to_le32(nseg);
2617
2618 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2619 psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
2620 psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
2621 byte_count += sg_dma_len(sg);
2622 }
2623 /* hba wants the size to be exact */
2624 if (byte_count > scsi_bufflen(scsicmd)) {
2625 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2626 (byte_count - scsi_bufflen(scsicmd));
2627 psg->sg[i-1].count = cpu_to_le32(temp);
2628 byte_count = scsi_bufflen(scsicmd);
2629 }
2630 /* Check for command underflow */
2631 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2632 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2633 byte_count, scsicmd->underflow);
2634 }
2635 }
2636 return byte_count;
2637 }
2638
2639
2640 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg)
2641 {
2642 struct aac_dev *dev;
2643 unsigned long byte_count = 0;
2644 u64 addr;
2645 int nseg;
2646
2647 dev = (struct aac_dev *)scsicmd->device->host->hostdata;
2648 // Get rid of old data
2649 psg->count = 0;
2650 psg->sg[0].addr[0] = 0;
2651 psg->sg[0].addr[1] = 0;
2652 psg->sg[0].count = 0;
2653
2654 nseg = scsi_dma_map(scsicmd);
2655 BUG_ON(nseg < 0);
2656 if (nseg) {
2657 struct scatterlist *sg;
2658 int i;
2659
2660 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2661 int count = sg_dma_len(sg);
2662 addr = sg_dma_address(sg);
2663 psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
2664 psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
2665 psg->sg[i].count = cpu_to_le32(count);
2666 byte_count += count;
2667 }
2668 psg->count = cpu_to_le32(nseg);
2669 /* hba wants the size to be exact */
2670 if (byte_count > scsi_bufflen(scsicmd)) {
2671 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2672 (byte_count - scsi_bufflen(scsicmd));
2673 psg->sg[i-1].count = cpu_to_le32(temp);
2674 byte_count = scsi_bufflen(scsicmd);
2675 }
2676 /* Check for command underflow */
2677 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2678 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2679 byte_count, scsicmd->underflow);
2680 }
2681 }
2682 return byte_count;
2683 }
2684
2685 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg)
2686 {
2687 unsigned long byte_count = 0;
2688 int nseg;
2689
2690 // Get rid of old data
2691 psg->count = 0;
2692 psg->sg[0].next = 0;
2693 psg->sg[0].prev = 0;
2694 psg->sg[0].addr[0] = 0;
2695 psg->sg[0].addr[1] = 0;
2696 psg->sg[0].count = 0;
2697 psg->sg[0].flags = 0;
2698
2699 nseg = scsi_dma_map(scsicmd);
2700 BUG_ON(nseg < 0);
2701 if (nseg) {
2702 struct scatterlist *sg;
2703 int i;
2704
2705 scsi_for_each_sg(scsicmd, sg, nseg, i) {
2706 int count = sg_dma_len(sg);
2707 u64 addr = sg_dma_address(sg);
2708 psg->sg[i].next = 0;
2709 psg->sg[i].prev = 0;
2710 psg->sg[i].addr[1] = cpu_to_le32((u32)(addr>>32));
2711 psg->sg[i].addr[0] = cpu_to_le32((u32)(addr & 0xffffffff));
2712 psg->sg[i].count = cpu_to_le32(count);
2713 psg->sg[i].flags = 0;
2714 byte_count += count;
2715 }
2716 psg->count = cpu_to_le32(nseg);
2717 /* hba wants the size to be exact */
2718 if (byte_count > scsi_bufflen(scsicmd)) {
2719 u32 temp = le32_to_cpu(psg->sg[i-1].count) -
2720 (byte_count - scsi_bufflen(scsicmd));
2721 psg->sg[i-1].count = cpu_to_le32(temp);
2722 byte_count = scsi_bufflen(scsicmd);
2723 }
2724 /* Check for command underflow */
2725 if(scsicmd->underflow && (byte_count < scsicmd->underflow)){
2726 printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n",
2727 byte_count, scsicmd->underflow);
2728 }
2729 }
2730 return byte_count;
2731 }
2732
2733 #ifdef AAC_DETAILED_STATUS_INFO
2734
2735 struct aac_srb_status_info {
2736 u32 status;
2737 char *str;
2738 };
2739
2740
2741 static struct aac_srb_status_info srb_status_info[] = {
2742 { SRB_STATUS_PENDING, "Pending Status"},
2743 { SRB_STATUS_SUCCESS, "Success"},
2744 { SRB_STATUS_ABORTED, "Aborted Command"},
2745 { SRB_STATUS_ABORT_FAILED, "Abort Failed"},
2746 { SRB_STATUS_ERROR, "Error Event"},
2747 { SRB_STATUS_BUSY, "Device Busy"},
2748 { SRB_STATUS_INVALID_REQUEST, "Invalid Request"},
2749 { SRB_STATUS_INVALID_PATH_ID, "Invalid Path ID"},
2750 { SRB_STATUS_NO_DEVICE, "No Device"},
2751 { SRB_STATUS_TIMEOUT, "Timeout"},
2752 { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"},
2753 { SRB_STATUS_COMMAND_TIMEOUT, "Command Timeout"},
2754 { SRB_STATUS_MESSAGE_REJECTED, "Message Rejected"},
2755 { SRB_STATUS_BUS_RESET, "Bus Reset"},
2756 { SRB_STATUS_PARITY_ERROR, "Parity Error"},
2757 { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"},
2758 { SRB_STATUS_NO_HBA, "No HBA"},
2759 { SRB_STATUS_DATA_OVERRUN, "Data Overrun/Data Underrun"},
2760 { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"},
2761 { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"},
2762 { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"},
2763 { SRB_STATUS_REQUEST_FLUSHED, "Request Flushed"},
2764 { SRB_STATUS_DELAYED_RETRY, "Delayed Retry"},
2765 { SRB_STATUS_INVALID_LUN, "Invalid LUN"},
2766 { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"},
2767 { SRB_STATUS_BAD_FUNCTION, "Bad Function"},
2768 { SRB_STATUS_ERROR_RECOVERY, "Error Recovery"},
2769 { SRB_STATUS_NOT_STARTED, "Not Started"},
2770 { SRB_STATUS_NOT_IN_USE, "Not In Use"},
2771 { SRB_STATUS_FORCE_ABORT, "Force Abort"},
2772 { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
2773 { 0xff, "Unknown Error"}
2774 };
2775
2776 char *aac_get_status_string(u32 status)
2777 {
2778 int i;
2779
2780 for (i = 0; i < ARRAY_SIZE(srb_status_info); i++)
2781 if (srb_status_info[i].status == status)
2782 return srb_status_info[i].str;
2783
2784 return "Bad Status Code";
2785 }
2786
2787 #endif
WRT350N Kernel Patches